Andy Murray's case just goes to show how quickly and how drastically thousands or millions of people's minds can change.
In the eyes of many members of the media, Andy Murray is now the real deal. These are the same people who, just months ago, were calling him a pretender and a choker, attacking him for crumbling under pressure.
It's not a unique case either—just read Open, Andre Agassi's autobiography.
But Murray may be the favorite for this U.S. Open because of his recent form. If he wins at Flushing Meadows, it will be the first year since 2003 that there have been four different Grand Slam winners (Agassi, Juan Carlos Ferrero, Roger Federer and Andy Roddick won the four Slams, respectively).
Here are five reasons why Murray will win the U.S. Open and his first Grand Slam title.